Class ElementScanner14<R,P>
java.lang.Object
javax.lang.model.util.AbstractElementVisitor6<R,P>
javax.lang.model.util.ElementScanner6<R,P>
javax.lang.model.util.ElementScanner7<R,P>
javax.lang.model.util.ElementScanner8<R,P>
javax.lang.model.util.ElementScanner9<R,P>
javax.lang.model.util.ElementScanner14<R,P>
- Type Parameters:
R- the return type of this visitor's methods. UseVoidfor visitors that do not need to return results.P- the type of the additional parameter to this visitor's methods. UseVoidfor visitors that do not need an additional parameter.
- All Implemented Interfaces:
ElementVisitor<R,P>
- Direct Known Subclasses:
ElementScannerPreviewPREVIEW
A scanning visitor of program elements with default behavior
appropriate for the
RELEASE_14
source version.
The visitXyz methods in this class scan their
component elements by calling scan on their enclosed elements, parameters, etc., as indicated in the individual method
specifications. A subclass can control the order elements are
visited by overriding the visitXyz methods.
Note that clients of a scanner may get the desired behavior by
invoking v.scan(e, p) rather than v.visit(e, p) on
the root objects of interest.
When a subclass overrides a visitXyz method, the
new method can cause the enclosed elements to be scanned in the
default way by calling super.visitXyz. In this
fashion, the concrete visitor can control the ordering of traversal
over the component elements with respect to the additional
processing; for example, consistently calling
super.visitXyz at the start of the overridden
methods will yield a preorder traversal, etc. If the component
elements should be traversed in some other order, instead of
calling super.visitXyz, an overriding visit method
should call scan with the elements in the desired order.
- API Note:
- Methods in this class may be overridden subject to their general contract.
- Since:
- 16
- See Also:
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Field Summary
Fields declared in class javax.lang.model.util.ElementScanner6
DEFAULT_VALUE -
Constructor Summary
ConstructorsModifierConstructorDescriptionprotectedConstructor for concrete subclasses; usesnullfor the default value.protectedElementScanner14(R defaultValue) Constructor for concrete subclasses; uses the argument for the default value. -
Method Summary
Modifier and TypeMethodDescriptionVisits an executable element.Visits a record component element.visitType(TypeElement e, P p) Visits a type element.Methods declared in class javax.lang.model.util.ElementScanner9
visitModuleMethods declared in class javax.lang.model.util.ElementScanner7
visitVariableMethods declared in class javax.lang.model.util.ElementScanner6
scan, scan, scan, visitPackage, visitTypeParameterMethods declared in class javax.lang.model.util.AbstractElementVisitor6
visit, visit, visitUnknown
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Constructor Details
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ElementScanner14
protected ElementScanner14()Constructor for concrete subclasses; usesnullfor the default value. -
ElementScanner14
Constructor for concrete subclasses; uses the argument for the default value.- Parameters:
defaultValue- the default value
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Method Details
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visitType
Visits a type element.- Specified by:
visitTypein interfaceElementVisitor<R,P> - Overrides:
visitTypein classElementScanner6<R,P> - Implementation Requirements:
- This implementation scans the type parameters, if any, and then the enclosed elements.
- Parameters:
e- the element to visitp- a visitor-specified parameter- Returns:
- the result of scanning
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visitExecutable
Visits an executable element.- Specified by:
visitExecutablein interfaceElementVisitor<R,P> - Overrides:
visitExecutablein classElementScanner6<R,P> - Implementation Requirements:
- This implementation first scans the type parameters, if any, and then the parameters.
- Parameters:
e- the element to visitp- a visitor-specified parameter- Returns:
- the result of scanning
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visitRecordComponent
Visits a record component element.- Specified by:
visitRecordComponentin interfaceElementVisitor<R,P> - Overrides:
visitRecordComponentin classElementScanner6<R,P> - Implementation Requirements:
- This implementation scans the enclosed elements.
- Parameters:
e- the element to visitp- a visitor-specified parameter- Returns:
- the result of scanning
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